Animoog – Moog Music’s first professional polyphonic synthesizer designed exclusively for the iPad, even includes Moogerfoogers.

KORG Gadget – This is a very popular app that comes with a collection of over 20 different synthesizers and drum machines.

Sunrizer Synth – A virtual analog synthesizer that works with any MIDI keyboard or sequencer.

Model 15 – Each facet of the Moog Model 15 modular synthesizer has been meticulously recreated in this application to ensure the power and transcendent sound quality of each module remains intact.

Thor Polysonic Synthesizer – From Propellerhead, Thor is modeled after Reason’s flagship synth. It includes over 1000 synth patches and you can create your own.

ThumbJam – Includes over 40 high-quality real instruments multi-sampled exclusively for the app. Hundreds of included scales allow you to effortlessly play in any style from rock to classical, whether you are a musical novice or a seasoned professional.

ARP ODYSSEi – A mobile version of the ARP Odyssey reproduction that uses KORG’s proprietary CMT circuit modeling technology to reproduce the analog feeling and sound of the original.

KORG iWAVESTATION – A wave sequence synthesizer modeled after the original Wavestation.

Troublemaker – Not a TB-303 but provides a similar vibe. Troublemaker sports a carefully crafted diode filter emulation and among the available oscillators are the typical raspy, nasal sawtooth and rubbery squarewave with its oddball shape and shifting pulsewidth.

FM4 – FM4 is a four operator FM synthesizer for iPad that is modeled after the DX series from the 1980s.

iSEM Synthesizer – A recreation of the classic 1974 Oberheim SEM (Synthesizer Expander Module), one of the world’s first self-contained synthesizer modules and the first to bear the “Oberheim Electronics” name.

WaveMapper – PPG WaveMapper is the second next-generation iOS based synth from Wolfgang Palm, who in 2012 released the PPG WaveGenerator to critical acclaim from both press and public.